Mass adoption doesn't happen overnight though. Things need to be proven to some degree to make big bets on them... especially in aerospace. Making generators an

Mass adoption doesn't happen overnight though. Things need to be proven to some degree to make big bets on them... especially in aerospace. Making generators and UAVs is a great way to do this; If a generator fails and it's 75% lighter than what it replaced, then just have two of them around... and now you have learned something for relatively cheap.